Skip to content

HDG Resources

Hot-dip galvanizing plays a crucial role in infrastructure projects, providing durable and long-lasting protection against corrosion. Hot-dip galvanized (HDG) steel has been used for over 175 years to protect steel from corrosion and is widely used in the majority of markets supported by the Bipartisan Infrastructure Law (BIL). In transportation, hot-dip galvanizing is employed to safeguard bridges, highways, and other products from rust and degradation caused by exposure to moisture, chemicals, and harsh weather conditions. The galvanized coating acts as a barrier, preventing corrosion and extending the lifespan of these vital structures. Additionally, hot-dip galvanized steel is utilized in the construction industry for applications such as guardrails, lighting poles, transmission towers, and sign supports. These components are exposed to environmental elements and require reliable corrosion protection to ensure their structural integrity over time.

Hot-dip galvanizedĀ coatings provide a cost-effective and low-maintenance solution, reducing the need for frequent repairs or replacements. Moreover, hot-dip galvanizing is used in electrical transmission and distribution infrastructure, where galvanized steel structures, such as poles and substation frameworks, offer superior corrosion resistance in various climates. Overall, the use of hot-dip galvanizing in infrastructure projects ensures longevity, sustainability, and cost-effectiveness by mitigating the detrimental effects of corrosion.


  • Card design guide

    Design Guide: Products Galvanized After Fabrication

    Design and fabrication practices for optimizing the quality of HDG coatings. This guide contains more than 30 full-color illustrations.

  • Card specifiers guide

    Hot-Dip Galvanizing for Corrosion Protection: A Specifier's Guide

    This publication discusses why specifiers choose HDG steel beyond just corrosion protection.

  • Card performance of HDG

    Performance of Hot-Dip Galvanized Steel Products

    This publication details hot-dip galvanized steels performance in various environments (atmosphere, water, soil, etc.).

  • Card sustainable design

    HDG for Sustainable Design

    Discusses the sustainability of hot-dip galvanized steel by examining both the environmental and economic impacts of utilizing the product.

  • Card duplex systems

    Duplex Systems: Painting Over Hot-Dip Galvanized Steel

    This publication provides an overview of duplex coated applications/benefit and surface preparation procedures.

  • Card aess guide

    HDG Architecturally Exposed Structural Steel (AESS) Guide

    A guide for specifiers on design and communication best practices when specifying HDG steel with aesthetics requirements.

  • Card inspection guide

    Inspection of Hot-Dip Galvanized Steel Products

    This guide covers the inspection procedures for HDG steel including a visual inspection guide with photo examples.

  • Card HDG bridges

    Design Guide: HDG Bridges

    Best practices to ensure the highest quality, longest lasting HDG steel bridges.

  • Card spec guide rebar

    Specifier's Guide: HDG Reinforcing Steel

    Performance of HDG rebar in concrete along with information about design, specification, fabrication, and installation concerns.

  • Card alt energy sustainable

    Sustainable Solutions in Alternative Energy

    Renewable energy sources provide sustainable, clean energy and likewise should be constructed from sustainable building materials such as hot-dip galvanized steel.

  • Parking high Page 01

    Hot-Dip Galvanized Parking Structures

    Explore the social benefits, economic savings, and environmental advantages of utilizing hot-dip galvanized steel to enhance your parking structure.

  • Card HDG Fasteners

    Hot-Dip Galvanized Fasteners

    This publication explains how and why hot-dip galvanized fasteners provide superior protection for connections, as well as some design considerations when using galvanized fasteners.

  • Card zinc coatings

    Zinc Coatings

    Designed to assist specifiers with the selection of zinc coatings for corrosion protection by discussing the various zinc coatings and their characteristics.

Calculators, Tools & Other Resources

  • Galv Locator ad

    Galvanizer Locator

    Find a hot-dip galvanizer near you by using our Galvanizer Locator. Search by address, zip, state/province, or company name. Kettle sizes for all plants are listed.

  • LCCC Bridge

    Life-Cycle Cost Calculator

    Use the Life-cycle Cost Calculator to compare the initial and life-cycle cost of hot-dip galvanizing to other common coating systems.

  • ZCLP Power

    Zinc Coating Life Predictor

    Use the Zinc Coating Life Predictor to estimate the atmospheric corrosion rate of hot-dip galvanized (zinc) coatings in your area.

  • Pregressive dip calc

    Progressive Dip Calculator

    This is a tool used to confirm whether an article of known dimensions can be progressive-dip galvanized within a galvanizing kettle of known dimensions.

  • Time to first maintenance chart ad

    Time to First Maintenance

    Use our TFM Chart to estimate when maintenance would be required to extend the life of HDG steel in typical North American environments.

Continuing Education Seminars - Free PDHs / LUs (HSW)

  • GI Seminar Core

    Galvanize It! Core Seminar

    This course will examine the hot-dip galvanizing process as well as other zinc coatings, and detail the intrinsic benefits galvanizing provides.

  • GI Seminar Design

    Galvanize It! Seminar: Design

    The course examines the hot-dip galvanizing process, ASTM specifications, design best practice, inspection, and preparing the galvanized surface for painting/powder coating.

  • GI Seminar SD

    Galvanize It! Seminar: Sustainable Development

    This course examines the sustainable aspects of HDG including zinc and the environment, LEED, life-cycle assessment (LCA), life-cycle cost (LCC), environmental and economic case studies.

  • GI Seminar Duplex

    Galvanize It! Seminar: Duplex Systems

    This seminar provides an overview about hot-dip galvanized steel and the synergistic benefits when coated with a paint or powder coating on top.

  • GI Seminar Bridge

    Galvanize It! Seminar: Bridge Design

    Understanding both the benefits and limitations of galvanized steel will assist bridge engineers in evaluating if hot-dip galvanizing is a solution for their bridge project.

  • GI Seminar Transportation

    Galvanize It! Seminar: Transportation

    This seminar provides an overview about hot-dip galvanized steel and how it can be used in in the transportation industry, from bridges and highways to mass transit applications.

  • GI Seminar Rebar

    Galvanize It! Seminar: Reinforcing Steel

    This seminar will help specifiers understand the benefits of hot-dip galvanized rebar in concrete and provide design and specification information specific to hot-dip galvanized rebar.

  • GI Seminar Parking

    Galvanize It! Seminar: Parking

    This seminar provides an overview of the social, economic, and environmental benefits of incorporating hot-dip galvanized steel in parking structures.

  • GI Seminar Power

    Galvanize It! Seminar: Power Infrastructure

    This seminar provides an overview about hot-dip galvanized steel and how it can be used in power generation, transmission and distribution projects.

  • GI Seminar Mining

    Galvanize It! Seminar: Mining

    This seminar will introduce you to the basics of specifying, designing, and inspecting hot-dip galvanized steel with an emphasis on its use in the mining industry.

Galvanized Steel Studies - Video Series

  • GSS Buffalo Creek

    Galvanized Steel Studies - Buffalo Creek Bridge

    All of the steel in the Buffalo Creek Bridge is galvanized. We interviewed the County & Chief Engineer on the project to learn why they chose HDG steel.

  • GSS Calgary LRT

    Galvanized Steel Studies - Calgary LRT Refurbishment

    When the city of Calgary was ready to refurbish the 7th Avenue Light Rail Transit (LRT) System learn how hot-dip galvanizing was the logical choice.

  • GSS Omaha Transmission

    Galvanized Steel Studies - Omaha Transmission Line

    Learn how the Omaha Public Power District's (OPPD) decision to use HDG steel has protected its transmission lines since their installation in 1971.

  • GSS Captain Trash Wheel

    Galvanized Steel Studies - Inner Harbor Water Wheels

    Learn how hot-dip galvanized steel protects water wheels that are capable of removing 50,000 pounds of trash per day in this corrosive environment.